Walkers mountain

About us

Our vision is for a world that's cleaner and healthier, today and for future generations.

Sites and locations in


countries around the world

Where we operate



FTSE 100 company with


year history

Our heritage

Inspiring science, enhancing life

As a global leader in sustainable technologies, we apply our cutting-edge science to create solutions with our customers that make a real difference to the world around us.

We’ve been leaders in our field for more than 200 years, applying unrivalled scientific expertise to enable cleaner air, improved health and the more efficient use of our planet's natural resources.

And our story doesn’t end there. Through continued investment in sound research and development, we’re tackling the world’s big challenges into our third century and beyond.

Acting today for the future

Our catalysts stop around 20 million tonnes of pollutants in their tracks every year. In the automotive market, one in every three new cars carries an emission control catalyst from JM. Toxic carbon monoxide and unburned hydrocarbons go in to the catalyst, clean air comes out. And because we understand, at the atomic scale, the distribution of platinum, palladium and rhodium in our catalysts, we're able to minimise the amounts of precious metal required to do the job.

Our chemistry helps relieve symptoms in millions of people each year. Active pharmaceutical ingredients (APIs) are the constituents of pills and other medications that do all the work, whether it's attacking cancer cells, regulating a heart beat or combating severe pain. And making them effectively always starts in the lab. JM develops API processes for many important, life changing drugs. We employ highly complex chemistry to prepare molecules to very specific standards, then design advanced manufacturing methods to produce them at the scale that our pharmaceutical customers need.

Platinum group metals (pgms), are a valuable natural resource, and their applications are numerous. You'll find them in autocatalysts, jewellery, electronics and even people's mouths, as fillings. The more pgms we can reuse, the less we need to take from the earth. So we've developed highly advanced processes for extracting and separating pgms from products - so advanced that we can recycle platinum and palladium, for example, to a purity of >99.95%.

Electric vehicles are on their way, and we're developing advanced new materials for battery cells in hybrid and full electric cars. Cathodes are the key. We're engaged in the cutting-edge science needed to understand how different cathode materials can reduce the time a battery takes to charge, and extend the distance fully charged electric vehicles can travel.

Our strategy in action

We are continuing to innovate with science-led products that meet a critical need for society, consumers and our customers. Thanks to our dedicated people and expertise in science at the atomic scale, our products are progressing our strategy to help make the world a cleaner and healthier place, today and for future generations.

Take a closer look at four of our most recent, innovative products, the advanced SCR, Fischer-Tropsch technology, the drug linker for IMMU-32 and eLNO®, which will give you an insight into the challenges we face and the incredible work that goes on at JM.

>>   View our success stories

Car driving along a peaceful road, Canada

More about JM

Where we operate

A list of our main sites and offices around the world.
London St Pauls
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Our heritage

Find out more about our history.
Percival Norton Johnson
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Our strategy

Read about our goals and strategies for the future.
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Our values

We have five core values that guide how we do things in JM.
Sunset and canoes
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Our core capabilities

Our expertise falls into nine key capabilities.
Materials molecule
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Our leadership

An introduction to our board and GMC members.
Robert MacLeod
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Our sector structure

See how we are structured internally.
Corporate buildings
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Access to our Code of Ethics, registered office details and more.
Clean air - woman looking out to sea
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Canoe boater


Find out more about what we do